Arrange the given steps of the Hershey and Chase experiment in correct sequence.
(A) Separation of virus particles from bacteria by centrifugation
(B) Infection of bacteria with phage DNA
(C) Radioactive bacteriophages were allowed to attach the bacteria
(D) Removal of viral coat from bacteria by blending
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The correct sequence of steps involved in polymerase chain reaction (PCR) are:
A. DNA polymerase is used to extends the primers using oligonucleotides.
B. Desired DNA fragments are denatured.
C. Amplified fragments are ligated with the vector for cloning.
D. Oligonucleotides are added
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Which of the following is not a venereal disease?

The correct sequence of formation of following structures in the developing embryo is -
(A). Heart
(B). Hair on head
(C). Limbs and digits
(D). Eyelashes
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Read the given passage and answer the question.
ABO blood groups in human beings are controlled by the gene I. The plasma membrane of the red blood cells has sugar polymers that protrude from its surfaces and the kind of sugar is controlled by the gene. The gene (I) has three alleles IA, IB and I. The alleles IA and IB produce a slightly different form of the sugar while allele i does not produce any sugar. Because humans are diploid organisms, each person possesses any two of the three I gene alleles, IA and IB are completely dominant over I.
Match List - I with List - II.

List - I (Phenotype)	List - II (Genotype)
(A) Blood group A	(I) IB IB, IBi
(B) Blood group B	(II) IA, IA IA
(C) Blood group O	(III) IA IB
(D) Blood group AB	(IV) ii

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Match List - I with List - II.

List - I (Microbe)	List - II (Application)
(A) Bacillus thuringiensis	(I) Alcohol
(B) Saccharomyces cerevisiae	(II) Immuno-suppressant
(C) Trichoderma polysporum	(III) Insecticide
(D) Aspergillus niger	(IV) Citric acid

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Observe the given diagram representing global biodiversity and answer the question.

Global Bio-diversity
Identify which is not represented in the figure?

Arrange the following compounds in increasing order of their reactivity towards HCN .




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Match List-I with List-II

List-l (Species)	List-II (Population interaction terms)
(A) Monarch butterfly	(I) Brood parasitism
(B) Cuckoo bird	(II) Commensalism
(C) Cuscuta	(III) Camouflage
(D) Sea anemone and Clown fish	(IV) Parasitism

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Which of the following is male sex hormone ?

The angular momentum of an electron in the third orbit of a hydrogen atom is
(Given: \( h = 6.6 \times 10^{-34} \text{ Js} \))

A very long straight wire carries a current (I) directed along positive Y-axis. A point charge +Q moves with velocity (v) along X -axis. The direction of force on the charge at point (5,0,0) m is

In a series LCR circuit, \( C = 5 \text{ }\mu\text{F} \) and \( \omega = 1000 \text{ rad/s} \). The value of inductance L for which the current is maximum in this circuit will be :